Effects of Strain Rate and Gauge Length on the Failure of Ultra-High Strength Polyethylene Fibers

Schwartz, Peter; Netravali, Anil N.; Sembach, S.

doi:10.1177/004051758605600807

Cited by 82 publications

(61 citation statements)

References 8 publications

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“…In general, the stress-strain behavior of UHMWPE fiber is increasingly linear with increasing strain rate [3,6,9]. The average behavior of 5 and 10 mm gage length samples is shown in Fig.…”

Section: Shape Of Stress-strain Curves With Respect To Strain Ratementioning

confidence: 91%

“…For each sample, about 10-20 diameter measurements were taken at different locations along the fiber and were averaged and used as fiber diameter in subsequent stress calculations. While some studies have suggested that UHMWPE fiber lacks roundness and that vibrometry methods are desirable to obtain cross-sectional area measurements [9], Russell et al [3] showed that Dyneema SK76 single fibers were fairly circular in cross-section. Additionally, vibrometry techniques are limited to samples longer than about 50 mm, which becomes problematic when trying to study the gage length dependence on tensile strength and the high-rate properties of fibers which require much shorter gage length samples [5,[9][10][11][12][13].…”

Section: Methodsmentioning

confidence: 99%

“…These self-spun UHMWPE fibers had strengths on the order of 0.4-1.2 GPa, which are considerably weaker than Dyneema and Spectra fibers that fail at stresses of 2.9-4 GPa depending on the fiber type [7,8]. Capstan-style grips that are typically utilized in yarn testing have also been used for UHMWPE single fibers [9]. However, the exact gage length of specimens in capstan experiments is difficult to determine which affects ultimate strain and measured modulus values.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Tensile Properties of Dyneema SK76 Single Fibers at Multiple Loading Rates Using a Direct Gripping Method

Sanborn

DiLeonardi

Weerasooriya

2014

J. dynamic behavior mater.

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Ultrahigh molecular weight polyethylene (UHMWPE) fibers such as Dyneema and Spectra are seeing more use in lightweight armor applications due to higher tensile strength and lower density compared to aramid fibers such as Kevlar and Twaron. Numerical modeling is used to improve the design of fiber-based composite protective systems. Material response such as tensile stress-strain of different constituents of composites must be studied under experimental conditions similar to strain rates experienced during ballistic events. UHMWPE fibers are difficult to grip by adhesive methods typically used for other fibers due to low surface energy. Based on previous studies, the ability to grip UHMWPE fibers using traditional adhesive methods is dependent on fiber diameter and is limited to smaller diameter fibers which could affect reported stress values. To avoid diameter restrictions and surface energy problems, a direct gripping method has been used to characterize Dyneema SK76 single fibers at quasistatic, intermediate, and high strain rates of 0.001, 1, and 1,000 s -1 , respectively. In an effort to understand the effect of defect distribution along a fiber on its tensile response, multiple gage length samples were studied at the different strain rates. In this paper, the dependence of fiber diameter and gage-length on failure strength is discussed as well as success rate of failures in the gage section with this gripping technique. A comparison of the tensile properties to previous studies is also explored in this study.

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“…In general, the stress-strain behavior of UHMWPE fiber is increasingly linear with increasing strain rate [3,6,9]. The average behavior of 5 and 10 mm gage length samples is shown in Fig.…”

Section: Shape Of Stress-strain Curves With Respect To Strain Ratementioning

confidence: 91%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Tensile Properties of Dyneema SK76 Single Fibers at Multiple Loading Rates Using a Direct Gripping Method

Sanborn

DiLeonardi

Weerasooriya

2014

J. dynamic behavior mater.

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show abstract

“…In general, the stress-strain behavior of UHMWPE fiber is increasingly linear with increasing strain rate (3,6,9). The average behavior of 5-and 10-mm-gage-length samples is shown in figure 8.…”

Section: Shape Of Stress-strain Curves With Respect To Strain Ratementioning

confidence: 96%

“…These self-spun UHMWPE fibers had strengths of 0.4-1.2 GPa, which are considerably weaker than Dyneema and Spectra fibers that fail at stresses of 2.9-4.0 GPa depending on the fiber type (7,8). Capstan-style grips that are typically used in yarn testing have also been used for UHMWPE single fibers (9). However, the exact gage length of specimens in capstan experiments is difficult to determine, which affects ultimate strain and measured modulus values.…”

Section: Introductionmentioning

confidence: 99%

Tensile Properties of Dyneema SK76 Single Fibers at Multiple Loading Rates Using a Direct Gripping Method

Sanborn¹,

DiLeonardi²,

Weerasooriya³

2014

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Effect of MMA-g-UHMWPE grafted fiber on mechanical properties of acrylic bone cement

Yang

Huang

Yang

et al. 1997

J. Biomed. Mater. Res.

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Ultrahigh molecular weight polyethylene (UHMWPE) fibers were treated with argon plasma for 5 min, followed by uv irradiation in methyl methacrylate (MMA)-chloroform solution for 5 h to obtain MMA-g-UHMWPE grafted fiber. The grafting content was estimated by the titration of esterification method. The grafting amount of 5280 nmol/g was the largest for the MMA concentration at 18.75 vol%. To improve the mechanical properties of acrylic bone cement, pure UHMWPE fiber and MMA-g-UHMWPE fiber were added to the surgical Simplex. P radiopaque bone cement. The mechanical properties including tensile strength, tensile modulus, compressive strength, bending strength, and bending stiffness were measured. Dynamic mechanical analysis was also performed. By comparing the effect of the pure UHMWPE fiber and MMA-g-UHMWPE grafted fiber on the mechanical properties of acrylic bone cement, it was found that the acrylic bone cement with MMA-g-UHMWPE grafted fiber had a more significant reinforcing effect than that with untreated UHMWPE fiber. This might be due to the improvement of the interfacial bonding between the grafted fibers and the acrylic bone cement matrix.

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Effects of Strain Rate and Gauge Length on the Failure of Ultra-High Strength Polyethylene Fibers

Cited by 82 publications

References 8 publications

Tensile Properties of Dyneema SK76 Single Fibers at Multiple Loading Rates Using a Direct Gripping Method

Tensile Properties of Dyneema SK76 Single Fibers at Multiple Loading Rates Using a Direct Gripping Method

Tensile Properties of Dyneema SK76 Single Fibers at Multiple Loading Rates Using a Direct Gripping Method

Effect of MMA-g-UHMWPE grafted fiber on mechanical properties of acrylic bone cement

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